Telephone.



F. TROISI. TELEPHONE.

APPLICATION men IAI. 21. $916.

1,202,756. Patented Oct. 24,1916. 2 SHEETS-SHEET I. 1

v gmmuilii INVENTOR iimnfino 2:086

F. TROISI.

TElEPHONE.

APPLICATION mm Ill]. 21. I516.

1,202,756. I Patented 0m 24,1916.

WITNESSES FIORENTINO TROISI, OF PITTSBURGH, PENNSYLVANIA.

TELEPHONE.

Specification of Letters ratent.

Patented Oct. 24, 1916.

Application filed latch 27, 1818. Serial No. 86,888.

To all whom it may concern.

Be it known that I, FIORENTINO TROISI, a subject of the King of Italy, residing at Pittsbur h, in the county of Allegheny and State of ennsylvania, have invented certain new and useful Improvements in Telephones, of which the following is a specification.

This invention relates to telephones, more particularly to the signal or bell therefor, and has for its object to provide means, in a manner as hereinafter set forth, whereby the signal or bell will be arranged in the base of the pedestal of the telephone, under such conditions overcoming the necessity of employing a signal or bell box, now in general use and which is connected to a wall or other support. Such arrangement will permit of the line wires leading right to the telephone pedestal and not interrupted by the signal or call box.

Further objects of the invention are to provide a telephone pedestal having an electrically operated bell arranged therein and in circuit, within the telephone pedestal or base, with the line wires.

Further objects of the invention are to provide a call or signal device for telephones which is simple in its construction and arrangement, strong, durable, efiicient in its use, conveniently set up and inexpensive.

With the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views :Figure 1 is an elevation, broken away, of the lower portion of the telephone pedestal showing the arrangement in the base of the pedestal of a call or signal device in accordance with this invention. Fig. 2 is a top plan view of abase plate illustrating the call or signaling device. Fig. 3 is a top plan view of the base plate. Fig. 4 is a diagram illustrating the connection.

Referring to the drawings in detail 1 denotes a circular base plate having an up wardly extending annular flange. The

plate 1 is cut away to provide an opening 3 and a supporting arm 4.

The reference character 5 denotes a telephone pedestal which terminates in a base 6 arcuate in cross-section and which is adapted to seat upon the plate 1 and be surrounded by the flange 2. As is well known in the ordinary form of telephone pedestal it is provided with a bracket 7.Which is secured to the bosses 8, formed in the plate 1, by securing devices 9.

The base plate 1 has a plurality of depending studs 10 for the purpose of maintaining the plate 1 above the support on which the pedestal is mounted.

Mounted upon the base plate 1 is an elec-" trically operated call or signal which consists of a bell 11, carried by a vertically disposed member 12 which is secured to the free end of. the arm 4. The bell 11 is connected to the member 12 by a securing device 13. The bell 11 is positioned above the opening 3 and clear of the arm 4.

Mounted upon the plate 1, at one side of the opening 3, is a magnetic coil 14, preferably of 500 ohms. The coil 14 is connected in any suitable manner, as at 15, to the arm 16 of -a bracket 17. The armature of the coil 14 is indicated at 18 and said coil is spaced from the other arm 19 of the bracket 17. The coil 14 has a pair of binding posts 20, 21, and to the former is connected a circult wire 22 and to the latter a circuit wire 23. The circuit wire 22 is electrically connected with the line wire 24 and the circuit wire 23 is connected to the line wire 25. Connection between the circuit wires 22 and 23, and line Wires 24 and 25 is within the telephone pedestal, preferably in the base,

although if desired it can be in the upright of the pedestal 5.

The reference character 26 denotes a ground wire. The line wires 24, 25, and ground wire 26 are inclosed in the covering or casing 27 of known arrangement.

he reference character 28 denotes a transmitter wire.

Associated with the bell 11 and intermittently operated by the coil 14 is a striker arm 29, having a head 30*, which is carried by an oscillatory member 30 provided with a contact point 32 which opposes the core 18. The member 30 ivots Hi the bracket 17, in proximately to t e arm 19 and said member 30 projects through the bracket and has connected therewith a coil spring 33, which has attached to one end thereof, a tensioning element therefor, as at 34. The signaling element 34 is carried by a support 35.

Mounted in the arm 19, and extending outwardly through the base 6, is a re ulating rod 38 for the member 30 and sai regulating rod is threaded, for engagement'with the arm 19, and also carries a nut 37. The function of the rod 36 is to control the movement of the member 30 so as to regulate the operation of the striker arm so if desired a buzzing effect can be had or the sound of the cooperation of the striker and bell increased if desired, or in other words the rod 36 is employed for controlling the sound of the bell 11.

To prevent the striker arm 29 from jumping upward, when it'is operated by the magnetic coil, the member 30 has projecting therefrom a curved arm 38, which extends through a slotted angle-shaped member 39 which constitutes a stop. The member 39 is pivoted so if desired it can be swung clear of the member 38. When the member 39 is in engagement with the arm 38, as illustrated in Fig. 2, there is no possibility of the striker arm 29 jumping upward, and furthermore the member 39 does not impalr the o eration of the striker arm 29 when it is oscillated due to the fact that the member 28 is arranged in an elongated slot 40 in the member 39.

In the diagram illustrated in Fig. 4, the telephone pedestal is indicated at 41 and the bell at 42.

The base may be provided with a condenser, induction coil and ringer, or other into the pe estal through the base, an electrically operated bell arran ed within the base, an electricall operate means within said base for said bell, and circuit formin means for said operating means arrange within the base and connected within the edestal to the line wires, said base having its bottom provided with an opening and a supporting arm, and said bell arranged over said opening and connected to the supporting arm.

2. The combination with a telephone pedestal having a base, of line wires extending into the pedestal through the base, an electrically operated bell arranged within the base, and electrically operated means within said base for said bell, and circuit forming means for said operating means arranged within the base and connected within the pedestal to the line wires, said base having its bottom provided with an opening and a supporting arm, and said bell arranged over said opening and connected to the supporting arm, and means extending into the ase and operated exteriorly of the base for controlling the sound of the bell.

In testimony whereof I aflix my signature in the presence of two witnesses.

FIORENTINO TROISI.

Witnesses:

B. E. JENKINS, LUELLA H. SIMON. 

